I had a couple of requests for the source code for SMS Voter 2.0 and since it's all freeware and hopefully a good learning project then maybe you'll be interested in what I did. The code is in good condition and should be reasonably straight forward to understand:)
It's quite an interesting project and makes use of the Compact Framework V2, the SMS Interceptor code and SQL code/statements to run against SQL Server Mobile 2005.
You can download the source code from http://projectdistributor.net/Projects/Project.aspx?projectId=247 - see the readme.txt file for the multicab installer...
oh and I found a moment to get the Pocket PC Phone Edition version published at http://www.pocketgear.com/software_detail.asp?id=24129.
Cheers and enjoy and if you have any feedback then be sure to send it my way!! Dave